Get a better aim with your SIG
Closely following the specifications of the U.S. Army’s M17 and M18, the Commercial M17 and M18 are now compatible with the ROMEO-M17 red dot optic –– a fully-enclosed American-built MIL-SPEC optic that provides professional users of the MHS pistol with the absolute best pistol-mounted red dot on the planet.

The commercial M17 and M18 pistols bring the same unprecedented accuracy, extreme reliability and unmatched durability the military demands, coming standard with SIGLITE night sights and removable night sight rear plates. The optic ready slides are directly compatible with ROMEO-M17 red dot optic. The slides and grip modules are the same coyote tan as the military version, and include (1) 17 round magazine and (2) 21 round magazines. Both come standard with or without a manual safety.

With 15 brightness settings, including three optimized for GEN 3+ Night Vision, you enjoy exceptional adjustability to your preference.
Available with three reticle options:
• 32 MOA Circle only
• 2 MOA Dot only
• Circle/dot combination

Powered by a single side-mounted CR2032 battery, the ROMEO-M17 is designed to function for 50,000 hours before needing a replacement.
The ROMEO-M17’s advanced technology includes MOTAC (Motion Activated Illumination), MAGNETAC (Magnetic Activation), and D.A.R.C. (Dark Adaptive Reticles & Coatings).
Available exclusively at the SIG Webstore, this slide allows P320 FULL-SIZE, CARRY or COMPACT owners to easily swap their existing slide configuration for this world-renowned slide and optic assembly.